Agitating device



Allg- 7, 1956 s. M. BROADWIN 2,757,908

AGITATING DEVICE Filed Feb. 25, 1955 SAMUEL .BRO/www BY Sal/42%( 14 TTOENE Y United States Patent AGITATING DEVICE Samuel M. Broadwin,NewYvol-lt, N. Y. Application February 25, 1955i, Serial No. 490,560

3 Claims. (Cl. 259-72) This invention relates to an agitating devicewhich 'is designed to agitate various liquids which are used inlaboratory procedures such as the Kahn test, Wasserman test, and similarlaboratory examinations.

In laboratory procedures of the character described it is necessary, atsome stage of the method, to agitate the container containing the testmaterial. Some procedures call for axially moving the container for Iaconsiderable period of time while others call `for arcuately moving thecontainer. Some tests call for both types of movement. Y

The apparatus used for the above purposes has been costly. Furthermoreno device has been heretofore manufactured which would produce eitheraxial or 'arcuate movement at the selection of the operator.

The agitating of this device, as produced by the instant invention, iseither axial or arcuate at the discretion of the operator. The device isrelatively inexpensive to manufacture and gives substantiallytrouble-free operation.

Briefly stated the agitating device of this invention comprises, incombination, a supporting element and a supported element yieldablysecured thereto. Means are provided to move the supported elementreciprocatingly.

In the preferred modication of this invention the supported element maybe selectively moved either axially or arcuately at the discretion ofthe operator of the device.

The invention will be further described by reference to the accompanyingdrawings.

Fig. 1 is a sectional view taken longitudinally through the agitatingdevice of this invention.

Fig. 2 is a sectional View of the agitating device of Fig. l taken alonglines 2 2 of Fig. l.

Fig. 3 is a plan view of the agitating device of Fig. l.

Fig. 4 is a perspective detail view of the actuating member and guidemember of this invention.

Fig. S is a diagrammatic view of the means used to operate the agitatingdevice of this invention.

Referring to the principal form of this invention `as shown in thedrawings the 4agitating device 10 has a supporting element 11 and asupported element 12. A plu rality of yieldable supports 13, which arepreferably metal springs covered with rubber or similar resilientmaterial, join supporting element 11 to supported element 12. Supports13 are located at the corner portions of element 11.

Motor 14 bears shaft 18 which has wheel 15 secured thereto. Shaft 16 issecured to Wheel 15 by pin 17.

Actuating member 20 is secured to shaft 16. Holding member 22 is securedto actuating member 20 and is held in place thereon by screw 21. Shaft23 is integral with holding member 22 and tits into recess 23a insupported element 12. Support 24 bears against the lower side of recess23a.

Shaft 23 is threaded at its upper end and bears screw 25 thereupon.

Guide 26 is provided with and arcuate.

slot 27 which is both axial Guide 26 is pivotally secured to support-`ICC ing element 11 by pins 29 and 30. Pin 29 is permanently secured tosupporting element 11 by nut v29a while'l pin 30 Ais removably securedthereto.y Handle 31 is providedto move pin 30 out ofengagementwithrecess 31 ing,36 in element l12. Guide 26 is disposed over open# ing 36.

Element 11 is provided with a raised door portion 37 wherein opening 36is provided while element 12 has a iloor 40 which serves as a containerholding member. Slidable guide 38 may also be provided movable andsecured to ears 39 upon element 12.

The speed of operation of the device may be controlled by conventionalrheostat means and on-olf operation can be provided by use yofconventional switch means.

The operation of the device will now be explained.

When it is desired to produce axial movement of element 12 with respectto element 11 guide 26 is secured to element 12 by pin 30 resting inrecess 31. With this arrangement the rotation of wheel 15 of motor 14will reciprocatingly move `actuating member 20. The period ofreciprocation of shaft 16 is such that actuating member 20 will not movepast the horizontal point of slot 27 of guide 26. Since slot 27 is onlyaxial at that point, and since actuating member 20 is partially disposedwithin slot 27 which limits the type of movement produced the movementof element 12 with reference to element 11 is only axial. Element 12 maymove with respect to element 11 even though secured thereto becausesupports 13 are yieldable.

When arcuate movement is desired pin 30 is removed from recess 31 andguide 26 pivoted about pin 29 until pin 30 ts into recess 32. When thisis accomplished actuating member 20 moves within the arcuate portion ofslot 27 between points 40 and 41. Thus arcuate movement of actuatingmember 20 is produced which is transmitted to element 12.

The foregoing specific embodiments of this invention as set forth in thespecification and drawings herein are for iilustrative purposes and forpurposes of example only.

Various changes and modifications may obviously be made within thespirit and scope of this invention V4and would occur to those skilled inthis art.

I claim:

l. An agitating device comprising, in combination, a supporting elementhaving a raised door portion provided with a longitudinal openingtherein, a supported eieinent having a container holding memberthereupon, a plurality of yieldable supports securing said supportingelement to said supported element, a pivotally movable guide membersecured to said supporting element above said longitudinal openingprovided with a longitudinal slot, means for holding said guide memberagainst pivotal movement, an actu-ating member secured to said supportedelement and disposed within said guide member, and means forreciprocatingly moving said actuating member.

2. An agitating device comprising, in combination, a supporting elementhaving a raised door portion provided With a longitudinal openingtherein, a supported element having a container holding memberthereupon. a plurality of yieldable supports securing said supportingelement to said supported element, a guide member secured to saidsupporting element above said longitudinal opening provided with anarcuate slot, means for pivotally positioning said guide member to saidsupporting element, an actuating member secured to said supportedelementand partially disposed within said guide Patented Aug., 7,l 1956r f f. f 2,757,908

member, and means for reciprocatingly moving said actuating member.

3. An -agitating device comprising, in combination, a supporting elementhaving a raised floor portion provided with a longitudinal openingtherein, a supported element having a container holding memberthereupon, a plurality of yieldable supports securing said supportingelement to said supported element, a pivotally movable guide membersecured to said supporting element above said longitudinal opening andprovided-with an axial and arcuate recess, means for rigidly positioningsaid guide member against pivotal movement upon said sup- 4 portingelement, an actuating member secured to said supported element andpartially disposed within said guide member, and means forreciprocatingly moving said actuating member so that said supportedelement may be selectively moved reciprocatingly with respect to saidsupported element.

References Cited in the le of this patent UNITED STATES PATENTS

